A current controller of grid-connected converter for harmonic damping in a distribution network
Publication: Research - peer-review › Article in proceeding
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A current controller of grid-connected converter for harmonic damping in a distribution network. / Wang, Xiongfei; Blaabjerg, Frede; Chen, Zhe.
Proceedings of the International Conference on Electrical Machines and Systems, ICEMS 2011. IEEE Press, 2011. p. 1-6.Publication: Research - peer-review › Article in proceeding
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TY - GEN
T1 - A current controller of grid-connected converter for harmonic damping in a distribution network
A1 - Wang,Xiongfei
A1 - Blaabjerg,Frede
A1 - Chen,Zhe
AU - Wang,Xiongfei
AU - Blaabjerg,Frede
AU - Chen,Zhe
PB - IEEE Press
PY - 2011
Y1 - 2011
N2 - Harmonic resonance caused by the increased use of shunt-connected capacitors in LCL-filters and power factor correction devices may become a serious power quality challenge in electric distribution systems. A voltage-detection method based on current control is developed to damp harmonic resonances. However, it is susceptible to the mismatch between harmonic conductance and characteristic impedance of distribution feeder. This paper proposes a current controller which allows discrete adjustment of harmonic conductance for both the characteristic harmonic and the non-characteristic harmonic voltages. Thus, the unintentional impedance mismatch can be attenuated to a large extent, and a lower power rating compared to the conventional control method is maintained. Simulations and laboratory tests are performed to verify the overall performance of the proposed controller.
AB - Harmonic resonance caused by the increased use of shunt-connected capacitors in LCL-filters and power factor correction devices may become a serious power quality challenge in electric distribution systems. A voltage-detection method based on current control is developed to damp harmonic resonances. However, it is susceptible to the mismatch between harmonic conductance and characteristic impedance of distribution feeder. This paper proposes a current controller which allows discrete adjustment of harmonic conductance for both the characteristic harmonic and the non-characteristic harmonic voltages. Thus, the unintentional impedance mismatch can be attenuated to a large extent, and a lower power rating compared to the conventional control method is maintained. Simulations and laboratory tests are performed to verify the overall performance of the proposed controller.
UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6073975
U2 - 10.1109/ICEMS.2011.6073975
DO - 10.1109/ICEMS.2011.6073975
SN - 978-1-4577-1044-5
BT - Proceedings of the International Conference on Electrical Machines and Systems, ICEMS 2011
T2 - Proceedings of the International Conference on Electrical Machines and Systems, ICEMS 2011
SP - 1
EP - 6
ER -